Seuthes III was the King of the Odrysian Kingdom of Thrace from c. 331 to c. 300 BC and founder of the nearby Thracian city of Seuthopolis.
The tomb has an impressive façade, an unusual 13m long entry corridor and three consecutive spacious rooms.
[2] The tomb was originally a monumental temple at Golyama Kosmatka Mound, built in the second half of the 5th century BC.
It includes knee pads, a gilded helmet with images, leather armour with a collar (plastron made of golden threads), a large sword and spears.
There are thirteen gold appliques for horse halters with images of human, animals and plants - objects which are rare in Thracian archaeology.